Question 1

Hydrogenation is used to convert alkenes and alkynes to alkanes.

Accepted Answer

A) True 
 B)False

Question 2

Halogenation is the process of adding chlorine or similar elements to an alkene or alkyne.

Accepted Answer

A) True 
 B)False

Question 3

When naming an alkene, the parent chain is the longest carbon chain

Accepted Answer

A)  that does not contain the double bond. 
B)  regardless of whether or not it contains the double bond. 
C)  that contains at least one of the carbon atoms of the double bond. 
D)  that contains both atoms of the double bond. 
E)  that contains a branch. 
A)  that does not contain the double bond. 
B)  regardless of whether or not it contains the double bond. 
C)  that contains at least one of the carbon atoms of the double bond. 
D)  that contains both atoms of the double bond. 
E)  that contains a branch.

Question 4

According to Markovnikov's rule, the hydrogen in HCl adds to the carbon in the double bond

Accepted Answer

A)  attached to the end carbon. 
B)  that has the smaller number of hydrogen atoms attached. 
C)  that has the greater number of hydrogen atoms attached. 
D)  that has the smaller number of carbon atoms attached. 
E)  that has the greater number of carbon atoms attached. 
A)  attached to the end carbon. 
B)  that has the smaller number of hydrogen atoms attached. 
C)  that has the greater number of hydrogen atoms attached. 
D)  that has the smaller number of carbon atoms attached. 
E)  that has the greater number of carbon atoms attached.

Question 5

Small molecules that make up the repeat unit in polymers are called

Accepted Answer

A)  monomers. 
B)  alkenes. 
C)  alkynes. 
D)  minipolymers. 
E)  synthetic polymers. 
A)  monomers. 
B)  alkenes. 
C)  alkynes. 
D)  minipolymers. 
E)  synthetic polymers.

Question 6

A compound that contains the ring structure of benzene is called a(n)

Accepted Answer

A)  alkane. 
B)  cycloalkane. 
C)  alkyl group. 
D)  aromatic compound. 
E)  hydrocarbon. 
A)  alkane. 
B)  cycloalkane. 
C)  alkyl group. 
D)  aromatic compound. 
E)  hydrocarbon.

Question 7

Which of the compounds is a cycloalkene?

Accepted Answer

A)  CH₂ = CHCH = CH₂ 
B)    
C)  CH3C = CH₂ 
D)    
E)    
A)  CH₂ = CHCH = CH₂ 
B)    
C)  CH3C = CH₂ 
D)    
E)

Question 8

An alkynes containing three carbons is named propyne.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following pairs of compounds are cis-trans isomers?

Accepted Answer

A)    
B)    
C)  HC ≡ C - CH3 and CH3- C ≡ CH 
D)    
E)    
A)    
B)    
C)  HC ≡ C - CH3 and CH3- C ≡ CH 
D)    
E)

Question 10

Name the following compound.

Accepted Answer

A)  3-butyl-3-propyl-1-pentyne 
B)  3-butyl-3-propyl-4-pentyne 
C)  3-ethyl-3-propyl-1-heptyne 
D)  5-ethyl-5-propyl-6-heptyne 
E)  3-ethyl-3-butyl-1-hexyne 
A)  3-butyl-3-propyl-1-pentyne 
B)  3-butyl-3-propyl-4-pentyne 
C)  3-ethyl-3-propyl-1-heptyne 
D)  5-ethyl-5-propyl-6-heptyne 
E)  3-ethyl-3-butyl-1-hexyne

Question 11

Markovnikov's rule states that when a hydrogen halide adds to a double bond, the proton will bond to the carbon that has the greater number of hydrogen atoms.

Accepted Answer

A) True 
 B)False

Question 12

The odors you associate with lemons, oranges, roses, and lavender are due to

Accepted Answer

A)  alkenes. 
B)  alkanes. 
C)  alkynes. 
D)  thiols. 
E)  amines. 
A)  alkenes. 
B)  alkanes. 
C)  alkynes. 
D)  thiols. 
E)  amines.

Question 13

The IUPAC name of CH3CH = CHCH3 is

Accepted Answer

A)  2-butene. 
B)  2-butane. 
C)  1-butene. 
D)  butene. 
E)  2-butyne. 
A)  2-butene. 
B)  2-butane. 
C)  1-butene. 
D)  butene. 
E)  2-butyne.

Question 14

The carbon atoms in saturated hydrocarbons

Accepted Answer

A)  have only single bonds. 
B)  contain at least one double bond. 
C)  contain at least one triple bond. 
D)  contain a benzene ring. 
E)  contain both a double and a triple bond. 
A)  have only single bonds. 
B)  contain at least one double bond. 
C)  contain at least one triple bond. 
D)  contain a benzene ring. 
E)  contain both a double and a triple bond.

Question 15

Which of the following names are correct?

Accepted Answer

A)  4-bromo-2-ethylbenzene 
B)  1-chloro-3-propylbenzene 
C)  3-bromo-4-chlorobenzene 
D)  2,2-dibromobenzene 
E)  4-fluoro-2-iodobenzene 
A)  4-bromo-2-ethylbenzene 
B)  1-chloro-3-propylbenzene 
C)  3-bromo-4-chlorobenzene 
D)  2,2-dibromobenzene 
E)  4-fluoro-2-iodobenzene

Question 16

What is the IUPAC name for the following compound?

Accepted Answer

A)  4-chloro-4,5-dimethyl-2-hexene 
B)  3-chloro-1,3,4-trimethyl-1-pentene 
C)  3-chloro-2,3-dimethyl-4-hexene 
D)  3-chloro-2,3,5-trimethyl-4-pentene 
E)  3-chloro-1,3,4,4-tetramethyl-1-butene 
A)  4-chloro-4,5-dimethyl-2-hexene 
B)  3-chloro-1,3,4-trimethyl-1-pentene 
C)  3-chloro-2,3-dimethyl-4-hexene 
D)  3-chloro-2,3,5-trimethyl-4-pentene 
E)  3-chloro-1,3,4,4-tetramethyl-1-butene

Question 17

When chlorine atoms are attached to carbon 1 and carbon 3 in benzene, the compound is named

Accepted Answer

A)  dichlorobenzene. 
B)  o-dichlorobenzene. 
C)  m-dichlorobenzene. 
D)  p-dichlorobenzene. 
E)  j-dichlorobenzene. 
A)  dichlorobenzene. 
B)  o-dichlorobenzene. 
C)  m-dichlorobenzene. 
D)  p-dichlorobenzene. 
E)  j-dichlorobenzene.

Question 18

What is the molecular formula of benzene?

Accepted Answer

A)  C6H4 
B)  C6H6 
C)  C6H₈ 
D)  C6H10 
E)  C6H12 
A)  C6H4 
B)  C6H6 
C)  C6H₈ 
D)  C6H10 
E)  C6H12

Question 19

Organic compounds with double or triple bonds are classified as

Accepted Answer

A)  unsaturated compounds. 
B)  saturated compounds. 
C)  dilute solutions. 
D)  concentrated solutions. 
E)  substituted compounds. 
A)  unsaturated compounds. 
B)  saturated compounds. 
C)  dilute solutions. 
D)  concentrated solutions. 
E)  substituted compounds.

Question 20

The reactants needed to produce the compound chlorocyclopentane are

Accepted Answer

A)  pentene and HCl. 
B)  pentene and Cl2 
C)  cyclopentane and Cl2 
D)  cyclopentene and HCl. 
E)  cyclopentene and Cl2 
A)  pentene and HCl. 
B)  pentene and Cl2 
C)  cyclopentane and Cl2 
D)  cyclopentene and HCl. 
E)  cyclopentene and Cl2

Exam 12: Alkenes, Alkynes, and Aromatic Compounds

Hydrogenation is used to convert alkenes and alkynes to alkanes.

Halogenation is the process of adding chlorine or similar elements to an alkene or alkyne.

When naming an alkene, the parent chain is the longest carbon chain

According to Markovnikov's rule, the hydrogen in HCl adds to the carbon in the double bond

Small molecules that make up the repeat unit in polymers are called

A compound that contains the ring structure of benzene is called a(n)

Which of the compounds is a cycloalkene?

An alkynes containing three carbons is named propyne.

Which of the following pairs of compounds are cis-trans isomers?

Name the following compound.

Markovnikov's rule states that when a hydrogen halide adds to a double bond, the proton will bond to the carbon that has the greater number of hydrogen atoms.

The odors you associate with lemons, oranges, roses, and lavender are due to

The IUPAC name of CH3CH = CHCH3 is

The carbon atoms in saturated hydrocarbons

Which of the following names are correct?

What is the IUPAC name for the following compound?

When chlorine atoms are attached to carbon 1 and carbon 3 in benzene, the compound is named

What is the molecular formula of benzene?

Organic compounds with double or triple bonds are classified as

The reactants needed to produce the compound chlorocyclopentane are

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The IUPAC name of CH₃CH = CHCH₃ is